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AD7706BRZ1 Fiches technique(PDF) 12 Page - Analog Devices |
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AD7706BRZ1 Fiches technique(HTML) 12 Page - Analog Devices |
12 / 44 page AD7705/AD7706 Rev. C | Page 12 of 44 OUTPUT NOISE (5 V OPERATION) Table 5 shows the AD7705/AD7706 output rms noise for the selectable notch and −3 dB frequencies for the parts, as selected by FS0 and FS1 of the clock register. The numbers given are for the bipolar input ranges with a VREF of 2.5 V and VDD = 5 V. These numbers are typical and are generated at an analog input voltage of 0 V with the parts used in either buffered or unbuffered mode. Table 6 shows the output peak-to-peak noise for the selectable notch and −3 dB frequencies for the parts. Note that these numbers represent the resolution for which there is no code flicker. They are not calculated based on rms noise, but on peak-to-peak noise. The numbers given are for bipolar input ranges with a VREF of 2.5 V for either buffered or unbuffered mode. These numbers are typical and are rounded to the nearest LSB. The numbers apply for the CLKDIV bit of the clock register set to 0. Table 5. Output RMS Noise vs. Gain and Output Update Rate @ 5 V Typical Output RMS Noise in μV Filter First Notch and O/P Data Rate −3 dB Frequency Gain of 1 Gain of 2 Gain of 4 Gain of 8 Gain of 16 Gain of 32 Gain of 64 Gain of 128 MCLK IN = 2.4576 MHz 50 Hz 13.1 Hz 4.1 2.1 1.2 0.75 0.7 0.66 0.63 0.6 60 Hz 15.72 Hz 5.1 2.5 1.4 0.8 0.75 0.7 0.67 0.62 250 Hz 65.5 Hz 110 49 31 17 8 3.6 2.3 1.7 500 Hz 131 Hz 550 285 145 70 41 22 9.1 4.7 MCLK IN = 1 MHz 20 Hz 5.24 Hz 4.1 2.1 1.2 0.75 0.7 0.66 0.63 0.6 25 Hz 6.55 Hz 5.1 2.5 1.4 0.8 0.75 0.7 0.67 0.62 100 Hz 26.2 Hz 110 49 31 17 8 3.6 2.3 1.7 200 Hz 52.4 Hz 550 285 145 70 41 22 9.1 4.7 Table 6. Peak-to-Peak Resolution vs. Gain and Output Update Rate @ 5 V Typical Peak-to-Peak Resolution Bits Filter First Notch and O/P Data Rate −3 dB Frequency Gain of 1 Gain of 2 Gain of 4 Gain of 8 Gain of 16 Gain of 32 Gain of 64 Gain of 128 MCLK IN = 2.4576 MHz 50 Hz 13.1 Hz 16 16 16 16 16 16 15 14 60 Hz 15.72 Hz 16 16 16 16 15 14 14 13 250 Hz 65.5 Hz 13 13 13 13 13 13 12 12 500 Hz 131 Hz 10 10 10 10 10 10 10 10 MCLK IN = 1 MHz 20 Hz 5.24 Hz 16 16 16 16 16 16 15 14 25 Hz 6.55 Hz 16 16 16 16 15 14 14 13 100 Hz 26.2 Hz 13 13 13 13 13 13 12 12 200 Hz 52.4 Hz 10 10 10 10 10 10 10 10 |
Numéro de pièce similaire - AD7706BRZ1 |
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Description similaire - AD7706BRZ1 |
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